Lamp-chimney holder



W. S. HAMMJ LAMP CHIMNEY HOLDER,

APPLICATION men MAR. 8, 191a.

Patented Oct. 21, 1919.

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W. S. HAMIVI.

LAMP CHIMNEY HOLDER.

APPLICATION FILED MAR. 8, I918.

1,819,389, Patented Oct. 21,1919.

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W. S. HAMM.

LAMP CHIMNEY HOLDER.

APPLICATION FILED MAR. 8. 1918.

1 ,3 1 9,389 Patented Oct. 21, 1919.

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- WZZZ 172 3 f/amrrz THE COLUMBIA PLANOGRAPH cm, WASHINGTON, n. c,

UNITED STATES PATENT OFFICE.

WILLIAM S. HAMM, OF HUBBARD WOODS, ILLINOIS, ASSIGNOR TO THE ADAMS & WESTLAKE 00., A CORPORATION OF ILLINOIS.

LAMP-CHIMNEY HOLDER.

Specification of Letters Patent.

Patented Oct. 21, 1919.

Application filed March 8, 1918. Serial No. 221,182.

To all whom it may concern:

Be it known that I, VVILLIAM S. HAMM, a citizen of the United States, and resident of Hubbard Woods, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Lamp Chimney Holders, of which the following is a specification, and which are illustrated in the accompanying drawings, forming a part thereof.

The invention relates to devices for holding the chimneys of lamps, and is shown, and is especially adapted for use, in connection with the chimneys of so-called longtime burners, with which type of burner there is employed a short cylindrical chimney having near its 'base an annular channel or an annular rib for engagement by a securing means.

Heretofore it has been the common practice to hold such chimneys by means of a plurality of spring fingers rising from the gallery of the burner and being bent inwardly at their upper ends to engage the channel or rib of the chimney. Such holding means is reasonably eflicient if the lamp is always stationary or at least not subject to violent movement. These long-time burners are frequently used in such situations as switch stands or on vehicles. A signal lamp used on a switch is turned with the switch stafl. The action is frequently violent, the operator throwing the controlling lever forcibly against a stop. It has been found in practice that when subjected to violent treatment of this kind the upstanding spring fingers do not reliably hold the chimney.

The object of this invention is to provide a holder with and from which the chimney may be readily engaged and disengaged, and which, while permitting the expansion of the chimney under the influence of heat, will nevertheless securely hold it under all circumstances. A further object is to provide, in a. holder of the kind shown, means for simplifying the operation of trimming the lamp.

The invention is fully hereinafter described and is illustrated in the accompanying drawings,- in which- Figure 1 is a transverse sectional view through the chimney immediately above the holder;

Figs. 2 and 3 are side elevations viewed from different angles;

Fig. i is a view in perspective of the holder shown in Figs. 1, 2 and 3;

Fig. 5 is a side elevation showing a modified form of construction;

Fig. 6 is a plan view of the burner and holder shown in Fig. 5;

Fig. 7 is an elevation of the burner as shown in Fig. 5, from a dilferent angle;

Fig. 8 is an elevation showing a different form of construction;

Fig. 9 is a plan view of the burner shown in Fig. 8;

Fig. 10 is a side elevation of the burner, with chimney, showing a further modification; 1

Fig. 11 is a plan View of the burner shown in Fig. 10;

Fig. 12 is a side elevation of the burner of Fig. 10 from a diiferent angle;

Fig. 13 is a side elevation of the burner and chimney showing a further modification;

Fig. 1 1i is a plan view of the burner shown in Fig. 13; and

Fig. 15 is a detail side elevation of the same form of burner.

The burner is of known construction, comprising a body 10, a wick'tube 11 upon which is mounted a flame spreader 12, and a gallery 18 in the form of a fiat annular ring upon which the chimney 14; seats, this gal lery being supported by posts, as 15, rising from the body 10.

In Figs. 2, 3 and 5 there is shown a chimney having an annular channel 16 for receiving the holding device, and in Fig. 8 the chimney is shown as having an annular rib or head 17 adjacent its end, over which the holding device clamps. T hese chimneys are cylindrical in form, and in both construc tions are alike at both ends in order that they may be reversible. Both forms of chimney are old.

The holding device shown in Figs. 1 to 4 is formed of a single piece of resilient wire bent to form a depending loop 18, which is secured to the gallery 13. The attachment may and preferably does take the form of a hinge. To this end the cross-member 19 of the loop 18 is straight to constitute the pintle of the hinge, the eye of which is formed by folding'a lip 20 of the gallery over the pintle. From the loop 18 the'two branches 21, 22, of the wire are bowed outwardly to conform substantially to the curvature of the chimney, the ends of these bowed portions crossing, as shown at 23, 24, both branches of the wire being then bent outwardly to form finger pieces 25, 26, which may be pressed together to spread the chimneyencircling portion of the holder to permit the insertion and removal of the chimney.

The extreme ends of the wire are bent downwardly, as shown at 27, 28, and then outwardly, as shown at 29, 30, these depending legs being adapted to extend through a slot 31 concentric with the wick tube and formed in a loop 32 projecting from the gallery 13 opposite the hinge lip 20. Midway of its ends the outer margin of the slot 31 is provided with a recess 33, through which the outwardly bent ends or feet 29, 30, of the holder may enter. The loop 18 and the legs 27, 28, are of such length that the bowed or clamping portions 21, 22, of the holder will enter the annular channel 16 of the chimney.

In assembling, the legs 27, 28, of the holder are engaged in the slot 30, asshown in Figs. 1, 2 and 3, the finger pieces 25, 26, are pinched together, expanding or torcing apart the bows 21, 22', permitting the insertion of the chimney. The legs 27, 28, normally are substantially vertical and are forced inwardly against their spring resistance in order. to enter them into the slot 31. lVhen pinched together, therefore, they spring into the recess 33 and the contraction of the holding device is prevented until they are manually released. When the holding device is thus expanded the chimney may be readily removed for trimming the wick. WVhen the legs 27 28, are released from the recess 33, the two branches 21, 22. of the holding device spring together and firmly grip the chimney. Notches 33 and 33' similar to the recess 33, may be formed one on each side of this recess for receiving and holding the legs 27, 28, when they are spread apart, as shown in Fig. 1. If desired, the chimney may be tilted back to give access to the wick for trimming by applying pinching pressure to the legs 27. 28, forcing the feet 29, 30, together and in line with the recess As the chimney is tilted back the pressure on the members 27, 28, is released and the chimney again securely clamped.

In the construction shown in Figs. 5. (3 and 7, an arm 36 projects upwardly from the gallery 13, to the upper end of which the holding device is attached, conveniently by a hinge construction comprising the cross member of a horizontal loop 34 formed integrally with the arms 21, 21, and an eye 35 formed on the member 36. The finger pieces 37, 38, also extend horizontally, be-

ing bent downwardly at their ends, asshown at 39, 40,to form a better finish and more convenient gripping portions. These finger pieces in this instance play within a horizontal slot 41, formed in an upstanding lip 42 integral with the gallery 13. The upper portion of the lip 42 is centrally apertured, asshown at 43, to permit the finger pieces 37, 38, to enter the slot 41. A notch 43-, formed centrally in the lower margin of the slot 41, holds the finger pieces when the arms 21, 22, are spread to release the chimney for trimming. When the hinge form of attachment of the holding device to the gallery is followed, as shown, the chimney may be tilted back for trimming, if desired.

The holder as shown in Figs. 8 and 9 is especially adapted for use in connection with a chimney having the annular head or rib 17, though any of the forms may be proportioned for use with either type of chimney. Here the attachment of the holding device to the gallery more conveniently takes the form of a hinge, as shown. The hinge portion 44 is shown as of the same construction as in Figs. 1 to 4, cooperating with an eye 45 formed on the gallery 13, the same as there shown. The finger pieces 46, 47, extend horizontally and arebent downwardly and inwardly to form hooks, as

shown at 48, for engaging under a horizontal,

lip 49 integral with the gallery 13, this lip having a central recess 50 to permit the entry of the hooks 48. The action of the holder shown in Figs. 5 to 9 is the same as that of Figs. 1 to 4, and in that of Figs. 8 and 9 provision is made for maintaining the holding device in expanded position by bending the plate 49 to form a pair of notches 49 one at each side of the opening 50, to hold the hooks 48.

In the construction of Figs. 10, 11 and 12, there is shown an annular flaring flange 51 rising from the gallery 52. Adjacent the rim of this flange, which is preferably rolled, there is formed at one side a circumferentially disposed slot 53 for receiring the hinge portion 54 of the clamping band 55. In this instance the hinge element 54 merely hooks into the aperture or slot 53, being turned down slightly at its outer end, as shown at 56, to prevent displacement. The outer ends 5.7, 58, of the clamping band project radially and engage with a circum-' ferentially disposed slot 59 at the opposite side of the flange 51, the rim of the flange being recessed, as shown at 60, midway between the ends of the slot 59 to permit their entry. A notch (30, similar to 'the notch 43 of Fig. 7 may be provided for holding the clamping band in expanded position.

In the construction of Figs. 13, 14 and 15, the gallery 61 is provided with diametrically opposite outstanding lugs 62, 63, from the former of which rises an integral arm (a. overturned at its upper end, as shown. at 65, to form the eye of the hinge for engaging the hinge element 66 of the clamping band 67 From the lug 63 there rises an integral flange 68, having its upper end flanged inwardly, as shown at 69. The ends 70, 71, of the clamping band engage under this flange, which is centrally recessed, as shown at 72, to permit their entry. The lug 63 is of sufiic'ient length to aii'ord space between the chimney and the inner edge of the flange 69 for gripping the finger pieces of the clamping band. In this construction the flange 69 may be bent at each side of the opening 72 to form recesses 72* for holding the ends 70, 71, of the clamping band to permit the removal of the chimney.

While the holder is shown as and preferably is attached to the gallery of the burner, it may be secured to any other portion, this detail depending largely on the judgment of the designer and the particular character of the burner in connection with which the device is used.

Several desirable forms of construction are shown. Other configurations may be given the attaching and end portions of the wire constituting the holder, and to the securing and retaining portions of the gallery or other part of the burner to which the holder may be connected, without departing from the scope of the invention,the more essential features being the outward bowing of the chimney-encircling portion, the crossing of the ends of these portions, and the formation of finger pieces to facilitate the expansion of the holder by a compressive action. The positive lock for holding the spring arms of the retaining ring in compressed position is of importance in that the yielding of the clamping ring, under the influence of severe shocks, is thereby prevented. This lock consists of the notches 33, 33 of Fig. 1, 43*, 43 of Fig. 7 49, 19 of Fig. 8, 60 60 of Fig. 11, and 72", 72 of Fig. 14. The hinging of the holder to the burner, while a desirable feature of the invention, is not essential for the mere securing of the chimney in place. It afiiords c011- venient means for gaining access to the wick for trimming, but in some situations, as where the lamp is used in connection with a semaphore and the operator has but one hand available, it is preferable to provide for the removal of the chimney.

I claim as my invention- 1. In combination, a lamp burner adapted to support a chimney, an open elastic ring for compressively encircling the chimney and having intermediate of its ends integral downstanding legs attached to the burner,

the ends of the ring being turned downward and engaging the burner.

2. In combination, a lamp burner adapted to support a chimney, an elastic clamping ring hingedly attached to the burner for encircling the chimney, the ends of the band being overlapped and outturned to form finger pieces, and a retaining plate carried by the burner for engaging such ends.

8. In combination, a lamp burner adapted to support a chimney, an elastic clamping ring hingedly attached to the burner for encircling the chimney, the ends of the band being overlapped and outturned to form finger pieces, and a retaining plate carried by the burner for engaging such ends, the plate being recessed to permit the disengagement.

d. In combination, a lamp burner, a hinge element and an oppositely disposed retaining plate formed on the burner, a spring chimney-clamping ring having a lateral loop forming a pintle engaging the hinge element, the end portions of the ring overlapping and being laterally extended to form finger pieces arranged to slidably engage the retaining plate, such plate having a notch or recess for permitting the disengagement of the ring.

5. In combination, a lamp burner, a hinge element and an oppositely disposed laterally-projecting retaining plate formed on the burner, a spring himney-clamping ring having a lateral loop forming a pintle engaging the hinge element, the end portions of the ring overlapping and being laterally extended to form finger pieces arranged to slidably engage the retaining plate, such plate having a notch or recess for permitting the disengagement of the ring.

6. In combination, a lamp burner, a hinge element and an oppositely disposed laterally-projecting slotted retaining plate formed on the burner, a spring chimneyclamping ring having a lateral loop forming a pintle engaging the hinge element, the end portions of the ring overlapping and being laterally and downwardly extended to form finger pieces arranged to slidably engage the retaining plate, such plate having a notch or recess for permitting the disengagement of the ring.

7. In combination, a lamp burner adapted to support a chimney, an open elastic ring for compressively encircling the chimney and having intermediate of its ends integral downstanding legs attached to the burner, the ends of the ring being turned downward and engaging the burner, and means for securing the ends of the ring against lateral movement.

"WILLIAM S. HAMM.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

